mode2 implements the CRYSTALS-Dilithium signature scheme Dilithium2 as submitted to round3 of the NIST PQC competition and described in https://pq-crystals.org/dilithium/data/dilithium-specification-round3-20210208.pdf.

mode3 implements the CRYSTALS-Dilithium signature scheme Dilithium3 as submitted to round3 of the NIST PQC competition and described in https://pq-crystals.org/dilithium/data/dilithium-specification-round3-20210208.pdf.

mode5 implements the CRYSTALS-Dilithium signature scheme Dilithium5 as submitted to round3 of the NIST PQC competition and described in https://pq-crystals.org/dilithium/data/dilithium-specification-round3-20210208.pdf.